ALISO VIEJO, CA - Smith Micro Software, Inc. (NASDAQ: SMSI), a leading developer and marketer of mobility solutions and services for the mobile market, announced it has received a Notice of Allowance from the U.S. Patent and Trademark Office indicating that it will be granting the company a patent on its "System and Method for Seamless Roaming Between Wireless Networks." This technological advancement in Smith Micro connectivity products offers its customers a transparent method to connect seamlessly between wireless networks.

The patent issued as U.S. Pat. No. 7,519,364 B2 and Smith Micro's previous patent, U.S. Pat. No. 7,133,669 granted in November 2006, covers a method for seamlessly switching a wireless device between wireless wide area networks (WWANs) and wireless local area networks (WLANs). The patented methods include manual control, as well as automatic network detection, selection, connection monitoring and maintenance.

"We believe these patents create strong competitive advantages for Smith Micro, as we expect the majority of mobile operators will need the technology to improve bandwidth efficiencies across multiple networks. The method for seamlessly handing off wireless connections as users roam between different networks reflects the significant and innovative progress Smith Micro has made in improving the service offerings for our customers," said William W. Smith, Jr., President and CEO for Smith Micro Software. "We are being recognized for our industry-leading innovation in mobile connectivity, and our design for uninterrupted, ubiquitous wireless access dramatically simplifies mobile data connectivity."

"The emergence of 4G wireless technology and an increasing number of connected devices have given rise to an urgent need to seamlessly switch users between alternative networks," added Biju Nair, Senior Vice President and General Manager for Smith Micro's Connectivity and Security group and the lead inventor of the patent. "We are excited to offer this critical technology to the mobile Internet community, especially as 3G and 4G technologies reach record penetration throughout the world. Today, we offer our Connectivity Plus technology in our QuickLink® family of products to our customers."

Having distributed more than 100 million licensed copies of its QuickLink-branded connectivity software, Smith Micro Software continues to advance its Connectivity Plus solutions for a dynamic wireless world.

About Smith Micro Software, Inc.:

Smith Micro Software, Inc., headquartered in Aliso Viejo, California, with offices in Europe and Asia, develops mobility solutions that enable seamless broadband connectivity and next generation media and mobile convergence products over wireless networks. Smith Micro's complete lines of products are available through its sales groups, direct from its websites, retail distributors, and value-added resellers. Smith Micro's common stock trades on the NASDAQ Global Market under the symbol SMSI. For more information, please visit: http://www.smithmicro.com.

Safe Harbor Statement:

This release may contain forward-looking statements that involve risks and uncertainties, including without limitation forward-looking statements relating to the company's net revenues guidance for fiscal 2009, its financial prospects and other projections of its performance, the company's ability to increase its business and the anticipated timing and financial performance of its new products and potential acquisitions. Among the important factors that could cause actual results to differ materially from those expressed or implied in the forward-looking statements are changes in demand for the company's products from its customers and their end-users, new and changing technologies, customer acceptance of those technologies, new and continuing adverse economic conditions, and the company's ability to compete effectively with other software companies. These and other factors discussed in the company's filings with the Securities and Exchange Commission, including its filings on Forms 10-K and 10-Q, could cause actual results to differ materially from those expressed or implied in any forward-looking statements. The forward-looking statements contained in this release are made on the basis of the views and assumptions of management regarding future events and business performance as of the date of this release, and the company does not undertake any obligation to update these statements to reflect events or circumstances occurring after the date of this release.

Smith Micro, Connectivity Plus, QuickLink and the Smith Micro logo are registered trademarks or trademarks of Smith Micro Software, Inc. All other trademarks and product names are the property of their respective companies.